Finding the Fourth Proportional to 16,839.34, 23,239.36 and 9,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,839.34 : 23,239.36 = 9,671.50 : x
2. Step 2: Convert to fraction form
   16,839.34/23,239.36 = 9,671.50/x
3. Step 3: Cross multiply
   16,839.34x = 23,239.36 × 9,671.50
4. Step 4: Simplify right side
   16,839.34x = 224,759,456.98
5. Step 5: Solve for x
   x = 224,759,456.98/16,839.34
6. Step 6: Final answer
   x = 13,347.28